Cylinder construction of internal-combustion engines



Feb. 19 1924.

O. MARGETSON CYLINDER CONSTRUCTION OF INTERNAL COMBUSTION ENGINES FiledJuly 5. 1925 2 Sheets-Sheet 1 In yen-W 2 Sheets- Sheet 2 ,Zh renfaf Feb.

- O. MARGETSON CYLINDER CONSTRUCTION OF INTERNAL- COMBUSTION ENGINESFiled July 5 1923 Patented Feb. 19, 1924.

PA 'TNT FFEE- OLIVER MARGETSON, QF LONDON, ENGLAND.

CYLINDER CONSTRUCTION OF INTERNAL-COMBUSTION ENGINES.

Application filed July 3,

pressure and in the event of fracture there would be a danger of steamand water being discharged into the engine room and the object of myinvention is to obviate this danger and at the same time strengthen thegeneral structure.

The invention consists broadly in casting the jacketed cylinder and itsvalve pockets inl the usual'manne'r and then shrouding the exposedcylinder wall in a casing of steel held in position by bolts and nuts.

In accordance with the invention I provide the shrouding in partsadapted to fit over the outer wall of the casting the parts meeting atjoints which telescope one into the other, or otherwise overlap, studsor bolts passing through abutting flanges and serving to hold thestructure together.

The cylinder end covers may be inthe form of steel plates or discs ormay be continuous with cylindrical extensions which embrace the cylinderends and interengage with adjacent cylindrical sheaths ors rouds. I Bymeans of the foregoing the cylinder structure as a whole is very muchstrengthened and all danger of accident through the discharge of hotwater or steam is eliminated.

In order thatthe invention may be clearly understood two embodiments ofthe'same will now be described by aid of the accompanying drawings inwhich Figure l is a vertical section through an internal combustionengine cylinder illustrating one embodiment of this invention.

Figure 2 is a similar view but illustrating another embodiment of theinvention.

In the drawings the cylinders are cast with the usual water jackets andwater pockcylinders of such engines are subject to 1923. Serial No.649,313.

ets the walls of which are either constituted by or supported by steelcasings held in position by nuts and bolts or their equivalent. I

Referring now particularly to Figure 1 the design of the cylinder showncomprises a cylinder barrel at having a Water jacket 6,

a head or cover 'ccarrying the usual inlet and exhaust valves, one ofwhich is indicated at d which valves are surrounded by water pockets 6.In this example the steel casings comprise a cover plate f which isbolted to the upper part of the cylinder barrel a by bolts so as toserve as a closure for the open en s of the water pockets e. The .waterjacket 6 is enclosed at its upper end by a wall h cast integral with thecylinder barrel which wall is supported by a steel shrouding or casing71. This casing z is provided at its upper end with an inturned flange jwhich rests upon a circumferential surface formed for its reception onthe upper part of the cylinder barrel a. The lower end of this casing isprovided with an' outwardly extending circumferential flange which isadapted to oppose a correspondingly shaped flange k formed on theadjacent upper part of a further steel casing Z. This latter casing lconstitutes the outer wall of the major andlower portion of the waterjacket I; and its upper end is extended as at m beyond the flange issaid extension fitting within the lower end of the upper casing 5 itstop edge abutting against the bottom edge of the wall 72,. The twocasings i and Z are held together by bolts or the like not shown whichengage the opposing flanges of such casings.

In the modified arrangement illustrated in Figure 2 the cover plate fand casing 11 which are separate attachments in Figure 1 are in thisexample constituted by a single casing n. which is flanged at its loweredge as at 0 and bolted to the opposing flange is of the casing Z as inthe example first described.

What I claim and desire to secure by Letters Patent is 1. A cylinderconstruction for internal combustion engines in which the outer orexposed walls of the water jackets or pockets are supported orconstituted by casings or shrouds of steel.

2. A cylinder constructioi for internal zoo messes combustion engines asin claim 1 in which the water jackets or pockets is efiected by suchsteel casings or shrouds are held in 'means of a plurality of cast steelmembers position by bolts and nuts or their equivawhich are secured tothe cylinder casting 10 lento and in some cases to each other by boltsand 5 3., A cylinder construction for internal the like fastening means,

combustion enginesas in claim 1 wherein In witness whereof I aflix mysignature. the encasing or shrouding of the walls of OLIVER MARGETSON.

